Tells the stories of people who are able to navigate the world and communicate with others despite losing what many of us consider indispensable senses and abilities: the power of speech, the capacity to recognize faces, the sense of three dimensional space, the ability to read, the sense of sight. For all of these people, the challenge is to adapt to a radically new way of being in the world. Also considers more fundamental questions: How do we see? How do we think? How important is internal imagery, or vision, for that matter? Why is it that, although writing is only five thousand years old, humans have a universal, seemingly innate, potential for reading? As a testament to the complexity of vision and the brain and to the power of creativity and adaptation, it provides a whole new perspective on the power of language and communication, as we try to imagine what it is to see with another person's eyes, or another person's mind.